This is amazing stuff. Clovis points were "invented" in North America around 13,000 years ago. This pushes human occupancy back at least 2,500 years. I should say "Hunter" occupancy, because stone tools and implements have been found that are even older. Some sites are dating to 25,000 years ago.

The team found the numerous weapons – about 3-4 inches long – while digging at what has been termed the Debra L. Friedkin site, named for the family who owns the land about 40 miles northwest of Austin in Central Texas. The site has undergone extensive archaeological work for the past 12 years.

Spear points made of chert and other tools were discovered under several feet of sediment that dating revealed to be 15,500 years old, and pre-date Clovis, who for decades were believed to be the first people to enter the Americas.